The CABERNET REFERENCE DHT Preamplifier is the new top of the line, and highest quality preamp ever built by Supratek.
It surpasses the 101D, 300B and 801A preamps in every way and represents a new standard in DHT preamp design.
Incredibly versatile, in addition to the optimally loaded 4P1L DHT gain stage it also has a switchable Lundahl input transformer , a switchable 6SN7 driver stage and a switchable Magnequest output transformer.
All of these options can be used singly or in combination to give a variety of gain, input/output impedances and sonic signatures.
If you want low gain/low output impedance preamp to use with high sensitivity or difficult amplifiers use the 4P1L stage with output transformer switched in.
If you want the highest gain possible (and the resultant dynamics that comes with high gain) switch the input transformer in, the 6SN7 driver stage in and the output stage off.
With three stages, and with such versatility, you are sure to find a combination that is just right for your system.
The heart of the preamp is the 4P1L DHT line stage . Optimally loaded with a v-fet/j-fet CCS and using filament bias it is supremely balanced and open sounding.
Deep strong bass, liquid midrange and shimmering treble it is the ultimate refinement of DHT sound.
Sophisticated design , using the famous Supratek tube shunt regulation and wonderfully complimented by the choice of high quality input and output transformers, which you may switch in or out to further refine the sound to your requirements.
The Lundahl input transformer suits all sources up to 1000 ohms (virtually all digital sources) and is wonderfully clean and transparent - it gives real "oomph" to the 4P1L line stage.
The 6SN7 tube driver stage is suitable for sources up to 100Kohms, tube phono stages etc, and adds a touch of tube euphonics and warmth to the sound, although it is most definitely a state of the art design that is very hi-tech.
The Magnequest output transformer is ideal when a low output impedance is required, it drops the output impedance of the 4P1L from around 1000 ohms ( which is already low enough to drive virtually anything) to around 250 ohms, for the most difficult amplifiers.
It also imparts a slightly different sonic signature that you may enjoy to have at the convenience of a switch.
This is a DHT preamp that does not limit you to the restrictions of a fixed and rigid sonic signature. You will enjoy learning how to get the sound you prefer , and having the ability to enjoy something a little different when the mood or source requires it.
Once again, being a Supratek it is at the forefront of audio design , and incredible value for money, easily besting designs costing 3, 5 and even 10 times the price.
Images soon.
